Just don't cross the wires. Sounds like I'm in the Ghost Busters Movie. "Don't cross the streams!". On non-circuit board cars like '63, the voltage regulator is in the one of the instruments. Trying to remember which one ; Either the temp or fuel. It will have an extra prong on the back of the gauge. Note, all white wires with red connectors are high voltage on your cluster. Don't mix those up with other wires! Anyway, the guages work pretty much the same as later models except that they're not mounted to a circuit board in '63 (and earlier) models. The method for checking them are all pretty much the same. Just watch out for the high voltage lines on 61-63 models! Mark Evans 1963 Imperial Crown Convertible http://www.io.com/~maevans/MyImperial/index.html 1968 Dodge Polara 500 Convertible http://www.io.com/~maevans/MyPolara/index.html ----- Original Message ----- From: "david munson" <davidmunson30@xxxxxxxxxxx> To: <mailing-list@xxxxxxxxxxxxxxxx> Sent: Sunday, March 02, 2003 4:34 PM Subject: Re: IML: fuel gauge only reads 3/4 fuel sender problems > Dear all > Am I right or am I wrong but my car has electroluminescent dash lights (63) > I have been told that you should not ground the sender wire to see if the > gauge works is this correct or not and if so how does one check these > gauges, I put in a "new" sender unit which briefly gave a 3/4 reading before > slowly dying as did the previous gauge.????????????. > > David Munson > > > > > > > >From: "Kerry Pinkerton" <pinkertonk@xxxxxxxxx> > >Reply-To: mailing-list@xxxxxxxxxxxxxxxx > >To: <mailing-list@xxxxxxxxxxxxxxxx> > >Subject: Re: IML: fuel gauge only reads 3/4 > >Date: Sat, 1 Mar 2003 20:47:57 -0600 > > > > If you disconnect the lead from the fuel tank and ground it while the key > >is on, your guage should read full. If it doesn't, your guage is bad. If > >it does, your sending unit has a problem. I use a couple long jumper wires > >with alligator clips on the ends and go directly from the battery ground. > >That way I can hook up to the battery ground, the sending unit lead and > >touch them together while I'm in the car so I can see the guage. Othersize > >it takes two people. > > > >KerryP > >Patch panels fabricated > >Pinkertonk@xxxxxxxxx > >dte.net/57imperial > >Imperials -- 50 Limo, 57 roadster, 61's, 64, 68 Convert, 73, a 66 300 and a > >bunch of lesser marques > >----- Original Message ----- > >From: Roger Farrar <tenpalms@xxxxxxx> > >To: <mailing-list@xxxxxxxxxxxxxxxx> > >Sent: Saturday, March 01, 2003 8:13 PM > >Subject: Re: IML: fuel gauge only reads 3/4 > > > > > > > <<<<<<<<<<<Where is the fuel sending unit at? When i fill up my tank it > > > says I only > > > have a 3/4 of a tank, so I have to do somthing to the sending unit. and > > > suggestions? > > > Thanks, > > > Kevin Pacheco > > > 71 IMPERIAL>>>>>>>>> > > > > > > Before repairing or replacing the tank > > > sending unit, clean and tighten all the connections in the circuit. Any > >iffy > > > connections can introduce enough resistance into the circuit to change > >the > > > calibration. The most likely connections to be cruddy are the one at the > > > tank sender or the connector plug(s) > > > in the wiring to the rear of the car. > > > regards > > > Michael > > > > > > Roger and Michael in San Diego > > > 67 Crown Convertible "Moby" > > > 73 LeBaron Coupe "La Bomba Negra" > > > 56 Sedan > > > > > > > > > > > > > > > ----------------- http://www.imperialclub.com ----------------- > > > This message was sent to you by the Imperial Mailing List. Please > > > reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be > > > shared with everyone. Private messages (and attachments) for the > > > Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx > > > To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm > > > > > > > > > > >